Sunwoo, who finished school earlier than usual, accidentally saw his mother's appearance, and his expression was not very good. Although Zhenghuan pushed away and resisted Deshan, he was confused because of his deepening feelings.On the other hand, Cui Ze happened to walk out of the house and planned to smoke a cigarette, and just appeared in front of Sun Woo and Bora who were secretly dating.Paula has been leaving early and coming home late recently, often staying in the library all day.Shanyu also started school, and could only meet Paula after evening self-study.In order to preserve the childlike innocence of six-year-old Pearl, a series of disturbances occurred in the alley, and the children began to play the game of Secret Friends (Manito).On the other hand, Zhenghuan, who knew Sunwoo's feelings for Paula, began to express his feelings to Deshan roughly even though he was unfamiliar.The dull Cui Ze's father was waiting at home for the scheduled reporter Park to come and record the interview. Cui Ze's father was careless and failed to answer the reporter's interview questions.At Dong-il's house in Ssangmun-dong, one thing that must be observed is not to provoke the crazy old lady Bora.Despite Ichika's dissuasion, she still touched Paula's most cherished thing, Deshan, and there was an unusual atmosphere between the two.On the other hand, Sun Woo, Jung Hwan, and Dong Ryong fantasize about the most exciting derailment in their 18 years of life.Grandma Deshan passed away, and Deshan's family returned to their hometown to express their condolences.